Robert Van Nice, Dumbarton Oaks Center for Byzantine Studies, gave the Class of 1928 Visiting Scholars' Lecture, entitled "Saint Sophia: An Architectural Inquiry." As resident representative of Harvard’s Dumbarton Oaks research center, Van Nice published the core documentation on Hagia Sophia, the 6th century church/mosque/museum in Istanbul. The first volume of his St. Sophia in Istanbul: An Architectural Survey appeared in 1965, followed by volume two in 1986.